Dogfood release of 1.1.3.0 build.

This release focus on the integration of the aspnetcore App Engine Flex runtime into the extension. This release makes use of a dogfood feature in the generated app.yaml files. Please note that using the generated app.yaml in the gcloud command line will fail until the runtime is released.

b1ae6f0 Updating to version 1.1.3.0. (#442)
cdc2966 Use the "runtime: aspnetcore" in the generated app.yaml. (#441)
538d1be Using the official runtime tag. (#439)
92a74a6 Ensuring right credentials for kubectl calls. (#434)
6f534fd Adding the param to the string. (#428)
e1be6ed Adding support for parsing the 'service: name' portion of an app.yaml. (#420)
180a61b Adding error details to the error dialog, show when erorr details are present. (#422)
9a55a39 Take into account the "name" property from project.json. (#418)